Some Optus Australia users plagued by phantom AUS$3.18 unsolicited adverts

Jennifer Willis is one of those people who always checks her bills carefully. And her vigilance seems to have uncovered yet another scam that we need to be wary of.  On her latest mobile telephone bill from Optus, she found she had been charged for an SMS advertisement that had been sent, unsolicited, to her phone.

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Surely Optus can lookup their network records and find out what aggregator originated the billing message?